Oil burning furnace with separable burner assembly rings therefor



Jan. 10, 1950 E. R. BAKER 2,494,374

on. BURNING FURNACE WITH SEPARABLE BURNER ASSEMBLY RINGS THEREFOR Filed Jan. 14, 1946 3 Sheets-Sheet l E. R. BAKER INVENTOR.

ATTORNEY Jan, W, 1950 E. R. BAKER 2,494,374

OIL BURNING FURNACE WITH SEPARABLE BURNER ASSEMBLY RINGS THEREFOR Filed Jan. 14, 1946 5 Sheets-Sheet 2 Jan. 10, 1950 E. R. BAKER 2,494,374

OIL BURNING FURNACE WITH SEPARABLE BURNER ASSEMBLY RINGS THEREFOR, Filed Jan. 14, 1946 3 Sheets-Sheet 3 FIG. 6 J N I Z'V/AVTITNIINJU FIG. 7

Patented Jan. 10, 1950 UNITED STATES PATENT OFFICE OIL BURNING FURNACE WITH SEPARABLE BURNER ASSEMBLY RINGS THEREFOR Earl R. Baker, Windsor, N. 0.

Application January 14, 1946, Serial No. 641,050

9 Claims.

heater of low cost which will satisfactorily supply the necessary heat at a small cost.

Further objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings, wherein:

Figure l is a front elevation illustrating one application of the invention;

Fig. 2, a vertical section;

Fig. 3, a plan View of the burner without the hood;

Fig. 4, a perspective of the burner without the hood;

Fig. 5, a perspective of the deflector ring;

Fig. 6, a perspective of the burner ring and oil trough assembly; and

Fig. 7, a perspective of the base.

Referring to the drawings, the preferred form of the invention comprises a base consisting of lower and upper concentric rings and II with inclined connecting members [2, the lower ring Ill being larger than the upper ring I I and being adapted to rest upon a suitable support. The upper ring H is flanged to receive and support certain parts to be described. The connecting members l2 are spaced to permit the flow of air through the openings 12' therebetween.

On the base is mounted a burner ring and oil trough assembly comprising an inner annular channel or trough member [3 having a central opening or air passage l4 and an outer ring [4 connected to the inner annular channel member by a plurality of spaced V-shaped cups l5 separated by air vents l5. Slots or notches 13' provide passageways in the outer rim of trough 13 to permit the oil from the trough to flow into the several cups l5. The outer ring 14 is preferably slightly taller than the rims of the trough. The burner and oil trough assembly may be cast as a unit or if desired may be formed of a plurality of parts.

A deflector ring I6 is supported on the outer ring [4 by means of an outwardly extending circular flange [1, the external diameter of which preferably equals the external diameter of the outer ring l4. Since the body of the deflector ring I6 is of slightly less diameter than its flange, a space is provided above the flange I! for preheating coils to be described. The deflector ring has a plurality of circumferentially spaced vanes I8 on the inner wall thereof and inclined relative ot the vertical, these vanes being provided to produce a rotary or whirling movement of the products of combustion. Any desired means may 'be employed for maintaining the deflector ring in the desired position relative to the oil trough assembly so that each of the vanes of the deflector ring will be in alignment with one side of each V-shaped oil cup l5 of the assembly. To simplify the assembling of the deflector ring and the burner ring oil trough assembly, the outer ring I 4 may be provided with a notch (not shown) for the reception of a projection (not shown) in the bottom of the flange l I.

Fuel to the burner ring is supplied by nozzles l9 from a fuel supply pipe having a swivel joint 2| and a T connection 22. Supply pipe 20 is also coupled to a valve 23 and is connected by a T coupling 24 to the supply conduit 25. In order to improve the efliciency of the burner, the fuel is preferably preheated in its passage to the trough l3. This preheating is accomplished in the pipe 20 which is preferably wound several times around the exterior of the deflector ring above the flange 11. Thus the coils of pipe 20 are protected by the deflector ring and flange H from direct contact with the flames yet are exposed to radiant heat so that the fuel therein will be preheated. If desired a priming pipe 26 controlled by a valve 21 may be utilized for admitting fuel directly from the supply pipe into the burner'ring. The supply through the priming pipe may be shut off after the burner is in operation. The valves 23 and 21 may be provided with handle extensions (not shown) extending to the exterior of the tobacco barn or other building in which the device is located. The desirability of these handle extensions, permitting opening and closing of the valves from a distance, will be readily recognized when it is taken into consideration that the temperature within the tobacco barn or other building is maintained sufliciently high to be uncomfortable if not dangerous to the I operator. 7

In order to provide a closed combustion chamdepending sleeve portion 29 which telescopes over ranged around the outer wall of the annular trough, means permitting oil in the annular trough to flow into the several spaced cups, the spaces between the cups providing a circumferential series of air vents for communication at their lower ends with the central opening of the base, an oil supply pipe discharging into said trough, a ring located above said assembly about which the supply pipe is coiled, said ring being so shaped and located as to protect the coiled pipe from direct contact with the flame of the furnace while permitting preheating of the oil passing therethrough, a valve to control flow of oil through said supply pipe, and a hood member enclosing said assembly and ring and providing also flue-connecting means.

9. The invention as set forth in claim 8 wherein the ring which protects the coiled pipe from contact with the flame is provided with a series of REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,651,628 Pecker Dec. 6, 1927 1,894,466 Hunter Jan. 1'7, 1933 1,948,857 Hoeft Feb. 27, 1934 2,288,083 Gainey June 30, 1942 2,367,460 Depper Jan. 16, 1945 

